Boosting accuracy, reducing false positives of PCR COVID-19 tests

PCR swab tests that look for viral RNA have become the gold standard for identifying infection with the SARS-CoV-2 virus, but their results aren't 100% accurate. This week in mSystems, researchers report that testing for ...

Ye olde pathogen: Learning about evolution from ancient DNA

As long as humans have been around, there have been pathogens to make us sick. Some have achieved infamy in human history—the bubonic plague, for example, or smallpox—and with modern technologies, scientists can time-travel ...

Microbiologists improve taste of beer

Belgian investigators have improved the flavor of contemporary beer by identifying and engineering a gene that is responsible for much of the flavor of beer and some other alcoholic drinks. The research appears in Applied ...

New methodology helps predict soil recovery after wildfires

Soils influence water quality, and they are critical to plant growth. However, it has been difficult to predict how plant growth and water quality would change in the wake of wildfires. Now, a team of Colorado investigators ...

Cable bacteria: Electric marvels of microbial world

The emergence of multicellularity, requiring complex interactions between different groups of individual cells for metabolic and physiological benefits, is a great success in the history of biology. While multicellularity ...

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